Im using Nebula Pro 3 on Mac OSX with Cubase at the minute and love it.

here's the thing I have a lot of nice outboard that I would like to start sampling.Currently Nat only works in Windows so ]I thought I should look into setting up a Bootcamp partition
but Im not sure what Windows OS to use so some help here would be cool.

the windows you like most. Nat works pretty well in xp, vista and 7, 32 or 64 bit. Actually nat is 32 bits only. I released a 64 bit utility to betatesters, so they are able to deconvolve using a 64 bit application.